The actors in international climate policy have developed a jargon of their own.

Explanations for numerous technical terms and abbreviations as well as an overview of numerous relevant institutions, panels and expert groups are provided in German at the info portal "Klima aktiv".

The UNFCCC site provides a similar glossary of climate change acronyms and some professional terms in English.

• Lexikon zum Klimaschutz
  Climate change lexicon (only in German).
  www.klima-aktiv.com/lexikon.html
• Glossary of climate change acronyms
  unfccc.int/essential_background/glossary/...